/*
 * Copyright 2006-2008 Michele Mostarda ( michele.mostarda@gmail.com ).
 * All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the 'License');
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an 'AS IS' BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.graphnav.model;

import org.graphnav.swing.Arc;
import org.graphnav.swing.Node;

/**
 * Defines a filter applicable on a <code>GraphModel</code>.
 *
 * @see org.graphnav.model.GraphModel
 */
public interface Filter {

    public void init();

    public void release();

    public boolean nodeIsVisible(GraphModel model, Node node);

    public boolean arcIsVisible(GraphModel model, Arc arc);

}
